Eigh (world)

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This is a world-system under construction and is currently being input-programmed into the Traveller RPG Wiki.

Eigh/Sandazar (Course 0122)
Classic Era (1116)
D644534-4
StarportD Poor: No Construction, Minor Repair, Unrefined fuel
Size6 Medium (9,600 km, 0.60g - 0.81g)
Atmosphere4 Thin (tainted)
Hydrographics4 Wet World 40%
Population5 Moderate (400 thousand)
Government3 Self-Perpetuating Oligarchy
Law4 Moderate Law (no light assault weapons)
Tech Level4 Industrial (combustion)
See also UWP
System Details
Primary K0 V D
Planetoid Belts 1
Gas Giants 2

Eigh is an agricultural, nonindustrial world still lacking adequate means to expand its economy.

Astrography and Planetology

This star system is detailed using the Fringian Variant System Description.

Binary Solar System

Eigh Binary Star System
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)
Eigh

K0 V

Primary Main Sequence 0.88 5170 - 5270 0.63928
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.0038 0.0663 0.78 - 1.4 0.38 3.8
Orbit #  *  * 3 1 5
Star Name Hierarchy Category Mass (Sol) Temp (K) Luminosity (Sol)
Eigh

D

Secondary White Dwarf 0.53 6800 - 6800 0
Unit Diameter Min Distance Hab Zone Jump Shadow M-Drive Limit
AU 0.00011 0.00168 0 - 0.03 0.011 0.11
Orbit #  *  *  *  * 0
Remarks
147 AU from primary

System Data

Horovan-Eigh System

The primary is Horovan, an ordinary orange main sequence star. It has a luminosity of 0.42 Sols, a mass of 0.825 Sols, and a diameter of 1.263 million km. The inner system consists of (I) a vacuum worldlet and (II) a dense atmosphere stormworld. (III) Eigh orbits within the habitable zone and is designated the mainworld. (IV) a standard atmosphere bigworld, (V) a small gas giant, (VI) a small ice giant and (VII) a vacuum iceworld form the outer system. Many of the worlds retain satellites.

Ranedos Subsystem

The companion is Ranedos, a dwarf star that lies approximately 147 AU (orbital position (XII), 2.5 billion km) from Horovan: the two stars orbit their barycenter, located within orbital position (XI), once every 1400 years. Ranedos has a luminosity of 0.00004 Sols, a mass of 0.83 Sols, and a diameter of 12,500 km. The outer system consists of (I) a sparse icy planetoid belt.

Mainworld Data

(III) Eigh

(III) Eigh is designated the mainworld. It orbits Holovan at a mean distance of 0.66 AU (98.7 million km), within the habitable zone. It has an orbital period of 215 days 15 hours and a rotation period of 20.5 hours. The axial tilt is 16 degrees. Eigh has a diameter of 9,377 km, a density of 5.22 g/cm³, and a surface gravity of 0.70 G. The world is geologically active. Its atmosphere is rated as Thin, Tainted, with a mean surface pressure of 0.62 bar and a composition of 80% nitrogen, 19% oxygen, 1%, argon, neon, and xenon, and 1% water vapour, carbon dioxide and other trace gases. The atmospheric taint is caused by the high percentage of inert gases. Approximately 38% of the surface is covered in seas of liquid water: average tidal ranges exceed 0.25m. Mean surface temperature: 9°C. The atmosphere is dynamic and strong weather systems driven by the star and the seas work across the globe. The climate is seasonal.

Mainworld geography and topography

Total surface area: 276 million km², Land surface area: 171 million km², Water surface area: 105 million km².

  • Breathing the atmosphere without protective measures can result in argon, xenon and neon pooling within the lungs, eventually causing inert gas asphyxiation. Breathing untainted air will rapidly clear any such pooling. Symptoms include a noticeable deepening of the voice, a persistent headache, dizziness, confusion, and physical tremors. Prolonged exposure can cause nausea, vomiting, unconsciousness, coma and death.

Native lifeforms

Eigh has primitive native life, consisting entirely of microscopic cyanobacteria-parallels that exist in almost every ecological niche. Their metabolic functions maintain the process of atmospheric renewal.

History & Background (Dossier)

No information yet available.

World starport

Eigh has a Class D Starport, a poor quality installation which has few of the expected amenities. There is unrefined fuel for starships and a limited variety of ship provisions. There is no shipyard of any kind, but there may be parts and technical support for doing minor services and repair. Ports of this classification generally consist of only a downport, unless this is a trade port or system with an hostile environment mainworld.

World technology level

Eigh possesses a Technology Level of TL–4.

World government

Eigh is governed by Self-Perpetuating Oligarchy. A single family or small group provides the leadership and important positions in the government. These positions are inherited by member of the group or their family members. The organization may be monarchy, with titles passed to family members. Or a plutocracy where inheritance of the family fortune includes government position. Or the organization may be more typical organization with positions of power inherited.

World military

No information yet available.

World economy

No information yet available.

Trade data

No information yet available.

World demographics

No information yet available.

World culture

No information yet available.

Historical data

No information yet available.

World timeline

No information yet available.

UWP listing

No information yet available.

References & Contributors / Sources

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